In detail: do-it-yourself repair of a Daewoo Nexia stove from a real master for the site my.housecope.com.
Over time, the stove on the Nexia begins to heat poorly, and this is due to the appearance of air in the engine cooling system, or rather, in the radiator of the stove. You can, of course, expel the air from the cooling system, but it does not help for long - after a while the stove is “airy”, and again starts to give slightly warm air.
Let's do the following experiment. On the machine warmed up to operating temperature, we additionally give it some more time to idle. After that, we feel the direct and reverse pipes going to the stove:
Warm stove pipes , and other pipes of the cooling system are hot (for example, the heating return pipe of the throttle valve), it turns out that there is air in the radiator of the stove - we read this material to the end , fixing flaws in the design of the Nexia cooling system.
Branch pipesstoveshot , read "Preparing Nexia for winter", and we make the Nexia stove warmer (we plug the cracks, we insulate, etc.) - in the specified material are indicated ALL POSSIBLE causes of a cold stove , and tips on how to make the stove warmer. Also, it does not hurt to seal the cold / heat damper, because often the reason for the cold stove lies in it.
Carefully remove the cover from the expansion tank of the cooling system, and gas it a little. In this case, antifreeze begins to drain from the return pipe of the throttle valve heating into the expansion tank from above and antifreeze is created "Waterfall effect:"
antifreeze falls from a great height, when it comes into contact with the surface of the antifreeze, air bubbles are created in the tank, which subsequently enter the cooling system and “air” it.
Video (click to play).
To avoid airing the cooling system, a way was invented to return the drain from the throttle valve return not to the expansion tank, but directly to the branch pipe running from the bottom of the expansion tank.
To do this, you need a tee - you can make it according to the specified dimensions, or pick up something from the commercially available (plumbing tees, tees from the cooling system of cars of other brands)
Cut off the throttle valve heating return pipe (which fits on top of the expansion tank), about 5-6 cm from the tank itself.
From the side of the expansion tank, this pipe must be plugged. We insert a bolt (or a piece of a rod) into the hose in size, tightly squeeze it with a clamp. It is advisable to wrap the bolt a little with FUM tape
We cut the branch pipe going from the bottom of the expansion tank. We cut it in the place where it goes vertically. We shorten at the incision site by about 3-4 cm, because this distance will be taken by a tee.
We insert a tee into the cut ends of this branch pipe, and on the remaining fitting of the tee we put on the return pipe from the throttle valve heating, which was previously connected to the top of the expansion tank (we cut it off in the previous step).
We compress all the tee fittings with clamps
A very good option for a ready-made tee can be purchased at a plumbing store:
1 tee
2 nipples 20 mm
1 nipple 10 mm
We assemble the parts either with gaskets or with FUM tape. We put on branch pipes on the fittings and crimp with clamps
You can make the specified revision without installing a tee and rearranging the pipes. We take a small piece, about 40 cm, of the brake pipe from the VAZ-2108 (maybe it will fit from other cars).
We bend the tube as shown in the photo. With the return pipe from the throttle valve removed, we insert the tube into the tank at one end, and on the other end we put on the return pipe from the DZ (do not forget about the clamps, they should already be on the pipe)
After installing the tee, it is necessary to expel air from the cooling system. We put the car up a hill (in front of it higher than the back), put it on the handbrake, start it up. We open the hood, remove the cover from the expansion tank. Add antifreeze above MAX. We raise the revolutions by about 3000 (for the cable), with the other hand we pump the pipe going to the stove. At the same time, we look at the level in the tank - if it falls, then top up. We do this procedure until the level in the tank stops dropping.
Greetings to all readers of my BZ. For a long time there was no news from me, and now I decided to remind myself ... My baby's run is already tangible
and the last MOT was ... the first MOT ... Well, actually, everything in order ... In this post I will tell you about the next repair of the stove. To begin with, I ripped open the panel:
and so as not to lose the chips - we glue the tags))) There is nothing difficult in parsing the dashboard - we just unscrew all the bolts, nuts and screws (the last bolt is in the engine compartment, above the cabin filter)
After some time, the stove in the car stops working and does not perform the functions that are assigned to it. Then an urgent repair of the Daewoo Nexia stove will be required. Experts note that the main reason for failures is the presence of air in the cooling system of the power unit. To be more specific, we are talking about the radiator of the vehicle's stove itself.
Some car enthusiasts offer to purge air from the cooling system. However, as practice shows, this method does not help for long. After 2-3 months, air again enters the Daewoo Nexia stove, and the problem with heating repeats again. As a result, the stove delivers cool air into the vehicle interior, which, of course, is not enough for the driver and passengers to drive normally in it.
You can correctly diagnose the problem and replace the stove with your own hands in the garage.
It is necessary to warm up the vehicle to the operating temperature.
After that, a short period of time should be allowed to run the power unit at idle.
Next, we probe the pipes that go directly to the stove of the machine. It is necessary to feel both the straight and the return pipe.
Based on the actions taken, you can determine the presence of a problem.
If, as a result of the work carried out, the pipes on the stove are in a warm state, and the other elements of the cooling system are hot, then there is air in the radiator of this system. Then it is necessary to correct the shortcomings in order to ensure the normal operation of the stove.
If the pipes on the stove are hot, then the stove should be repaired so that it does not get too hot. For example, there is an option for insulating it or eliminating cracks.
How to repair a stove with your own hands on a Daewoo Nexia? In order to understand for what reasons air can enter the stove, several sequential steps should be taken.
It is necessary to carefully remove the cover, which is installed on the expansion tank of the cooling system.
Now you should slightly add gas on the car.
In such a situation, antifreeze begins to flow into the tank from the reverse throttle valve. Experts also call this the waterfall effect. In this case, the liquid enters the tank from a great height, and when it comes into contact with the surface of the antifreeze itself, air bubbles are formed. Then they end up in the cooling system, which leads to airing.
In order to be able to eliminate this problem, they came up with a very original method. Its essence is to return the drain from the return line on the throttle valve to the branch pipe. Prior to this, the drain went immediately into the tank itself. In order to repair the stove, you need a tee. You can do it yourself or you can find the required tee in the retail network, where a large selection of plumbing products is offered.
In this case, you will need to purchase the following items:
One tee.
Two unions with a diameter of 20 mm.
One fitting with a diameter of 10 mm.
Now the parts are being assembled using shims. Further, the branch pipes are put directly on the fittings. After that, the parts are crimped using clamps.
The technology of the work is as follows:
We cut the nozzle in the heating return line of the throttle valve. This refers to the one that is directly supplied from the top of the expansion tank. It is necessary to maintain a distance of 5 or 6 cm from the surface of the tank.
Now, from the side of the expansion tank, this pipe must be plugged. To do this, you can insert a piece of a rod or a bolt into the hose that matches the size of its inner diameter.
We crimp with the clamp of this pipe. For this, it is recommended to wrap the bolt with a special FUM tape.
We cut the pipe that comes from the bottom of the expansion tank. The incision is made in its vertical section in relation to the horizon.
In the place where the cut was made, we shorten the branch pipe by 3 cm. This is necessary so that you can put a tee there.
Now, in both ends of the branch pipe, which turned out after cutting it, we insert the selected tee.
On the tee fitting, which has remained free, you should put on the return pipe coming from the throttle valve. We remind you that earlier it was connected to the top of the expansion tank.
All fittings are now crimped using prepared clamps.
How to change the stove pipes in places on the Nexia? It is better to change them on the engine than on the radiator. As a result, the supply and return on the radiator will change places. By changing the nozzles, you can greatly improve the performance of the stove.
Now you know how to swap the pipes on the Daewoo Nexia stove.
It is possible to modify the heating system in a Daewoo Nexia car without installing a tee. It is necessary to prepare your own small piece of the brake pipe from the eighth model Zhiguli and replace it. Its length should be approximately 40 cm.
Bend the tube along the contour of the expander.
Remove the return pipe from the throttle valve.
Insert one of the ends of the prepared tube into this tank.
We connect the other end of the changed tube to the branch pipe on the damper return line.
We clamp all connections with clamps.
After all work has been carried out, the air should be expelled from the system. To do this, follow these steps:
We place the car on an inclined plane so that its rear is lower than the front.
We start the car and put it on the hand brake.
Dismantle the tank lid under the open hood.
We fill the expansion tank to the maximum level.
We increase the speed to 3000 with a cable. In this case, with the other hand, we pump the branch pipe, which fits to the stove itself.
We monitor the liquid level in the tank. When it decreases, we fill it up to the maximum mark.
It is necessary to carry out such actions as long as the level in the tank is in the same state.
After all the repair work is over, before starting the trip, we check the liquid level in the tank. If necessary, we supplement it to the desired value. In a situation where these procedures do not bring the desired result, we replace the Daewoo Nexia stove.
How to remove a stove on a Nexia? To do this, you need to disassemble the entire center console. First, on the panel, remove the decorative frame of the stove and radio, slightly prying it with your fingers. Then we unscrew the 2 self-tapping screws that hold the decorative frame of the gearshift lever. We remove this frame and unscrew the screws that hold the ashtray. Then remove the ashtray and radio. Then we remove the panel of the stove control unit itself and take it out. How to get to the Daewoo Nexia stove? It is necessary to dismantle the lining of the center console and remove the plastic casing.We will see the radiator of the stove, and in order to remove it, it is necessary to disconnect the pipes. Removing the Daewoo Nexia stove with your own hands does not present any difficulty. The installation of a new stove is carried out in the reverse order.
